Home / 3,782.49-5,220.69-2,104.50

Finding the Fourth Proportional to 3,782.49, 5,220.69 and 2,104.50

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Solution

The fourth proportional to 3,782.49, 5,220.69 and 2,104.50 is: 2,904.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.49 : 5,220.69 = 2,104.50 : x
  2. Step 2: Convert to fraction form
    3,782.49/5,220.69 = 2,104.50/x
  3. Step 3: Cross multiply
    3,782.49x = 5,220.69 × 2,104.50
  4. Step 4: Simplify right side
    3,782.49x = 10,986,942.11
  5. Step 5: Solve for x
    x = 10,986,942.11/3,782.49
  6. Step 6: Final answer
    x = 2,904.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.